feat(sqlqueryreceiver) add error count metrics for receiver

[kasia-kujawa]

Format of metric:

# HELP otelcol_receiver_error_count Number of errors
# TYPE otelcol_receiver_error_count counter
otelcol_receiver_error_count{error_type="collect_error",query="query-0: select * from simple_logs",receiver="sqlquery",service_instance_id="9763b7d6-e907-438f-9b70-6e4882756785",service_name="otelcol-sumo",service_version="v0.70.0-sumo-0-198-g210a3dfb53"} 0
otelcol_receiver_error_count{error_type="collect_error",query="query-0: select * from test_logs",receiver="sqlquery/wrong_query",service_instance_id="9763b7d6-e907-438f-9b70-6e4882756785",service_name="otelcol-sumo",service_version="v0.70.0-sumo-0-198-g210a3dfb53"} 2
otelcol_receiver_error_count{error_type="start_error",query="query-0: select * from simple_logs",receiver="sqlquery",service_instance_id="9763b7d6-e907-438f-9b70-6e4882756785",service_name="otelcol-sumo",service_version="v0.70.0-sumo-0-198-g210a3dfb53"} 0
otelcol_receiver_error_count{error_type="start_error",query="query-0: select * from test_logs",receiver="sqlquery/wrong_query",service_instance_id="9763b7d6-e907-438f-9b70-6e4882756785",service_name="otelcol-sumo",service_version="v0.70.0-sumo-0-198-g210a3dfb53"} 0

for configuration:

receivers:
  sqlquery:
    collection_interval: 10s
    driver: postgres
    datasource: "host=127.0.0.1 port=5432 user=otel password=otel sslmode=disable"
    queries:
      - sql: "select * from simple_logs"
        logs:
        - body_column: BODY

  sqlquery/wrong_query:
    collection_interval: 10s
    driver: postgres
    datasource: "host=127.0.0.1 port=5432 user=otel password=otel sslmode=disable"
    queries:
      - sql: "select * from test_logs"
        logs:
        - body_column: BODY
exporters:
  logging:
    verbosity: detailed
    sampling_initial: 5
    sampling_thereafter: 200

service:
  telemetry:
      logs:
        level: "debug"
  pipelines:
    logs:
      receivers:
        - sqlquery
      exporters:
        - logging
    logs/wrong_query:
      receivers:
        - sqlquery/wrong_query
      exporters:
        - logging

[andrzej-stencel]

Is the _count suffix in the metric name right? I'm not sure I've seen it in other OpenTelemetry metrics.

[kasia-kujawa]

Suffix removed, new format of metric:

# HELP otelcol_receiver_errors Number of errors
# TYPE otelcol_receiver_errors counter
otelcol_receiver_errors{error_type="collect_error",query="query-0: select * from simple_logs",receiver="sqlquery",service_instance_id="f5884777-cec4-48a0-8b9c-834562e91acb",service_name="otelcol-sumo",service_version="v0.70.0-sumo-0-204-gdbf1aff740"} 0
otelcol_receiver_errors{error_type="start_error",query="query-0: select * from simple_logs",receiver="sqlquery",service_instance_id="f5884777-cec4-48a0-8b9c-834562e91acb",service_name="otelcol-sumo",service_version="v0.70.0-sumo-0-204-gdbf1aff740"} 0